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TECHNICAL DATA SHEET ISSUED BY TIMBER QUEENSLAND ...
www.qbcc.qld.gov.auTIMBER SIZES For sizes of bearers, joists and allowable joist spacings, refer to Tables 1 - 3. Other grades and sizes can be used in accordance with AS1684 ... maximum width of standard thickness (19 - 22 mm) decking be ... timber decking should be properly finished and maintained. Before fixing, the following should be applied: ...
Guidance Note Purlin and Rafter Sizes
www.derbyshiredales.gov.ukThe following tables give details of the allowable spans and spacing for some of the more common timber sizes used in traditional roofing construction. All the figures are based on roofing tiles or slates laid on timber laths over sarking felt. For heavier roofing materials or unusual loading conditions these tables may